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Pharm CH 4
Drug Interactions and Over-the-Counter Drugs
| Question | Answer |
|---|---|
| additive effect | is the sum of the effects of the two drugs. |
| adverse drug reaction | is an undesirable drug effect that ranges from mild untoward effects to severe toxic effects, including hypersensitivity reaction and anaphylaxis. |
| antagonistic effects | When two drugs that have opposite effects are administered together, each drug cancels the effect of the other. In other words, the actions of both drugs are nullified. |
| drug incompatibility | is a chemical or physical reaction that occurs among two or more drugs in vitro. In other words, the reaction occurs between two or more drugs within a syringe, IV bag, or other artificial environment outside of the body. |
| drug interaction | is defined as an altered or modified action or effect of a drug as a result of interaction with one or multiple drugs. |
| photosensitivity | is a skin reaction caused by exposure to sunlight. |